Which animal possesses the most primitive nervous system?

• (A) Earthworm
• (B) Hydra
• (C) Frog
• (D) Human

What is the oxidation state of Chlorine in \( Cl_2O_7 \)?

• (A) \(+1\)
• (B) \(+3\)
• (C) \(+5\)
• (D) \(+7\)

Which plant hormone is primarily responsible for apical dominance?

• (A) Cytokinin
• (B) Auxin
• (C) Gibberellin
• (D) Ethylene

What is the hybridization of the carbon atom in \(CO_2\)?

• (A) \(sp^3\)
• (B) \(sp^2\)
• (C) \(sp\)
• (D) \(sp^3d\)

If the distance between two charges is doubled, what happens to the Coulomb force?

• (A) It becomes double
• (B) It becomes four times
• (C) It becomes half
• (D) It becomes one-fourth

Which antibody is most abundant in human colostrum?

• (A) IgG
• (B) IgA
• (C) IgM
• (D) IgE

What is the interaction where one species is harmed and the other is unaffected?

• (A) Mutualism
• (B) Commensalism
• (C) Amensalism
• (D) Parasitism

What is the volume of air remaining in the lungs after forceful expiration called?

• (A) Tidal Volume
• (B) Vital Capacity
• (C) Residual Volume (RV)
• (D) Inspiratory Capacity

What is the stability order of carbocations?

• (A) Primary \(>\) Secondary \(>\) Tertiary
• (B) Secondary \(>\) Primary \(>\) Tertiary
• (C) Tertiary \(>\) Secondary \(>\) Primary
• (D) Primary \(>\) Tertiary \(>\) Secondary

What is the formula for centripetal acceleration?

• (A) \(a = \frac{v}{r}\)
• (B) \(a = \frac{v^2}{r}\)
• (C) \(a = vr\)
• (D) \(a = \frac{r}{v^2}\)

Which law states that magnetic susceptibility is inversely proportional to absolute temperature?

• (A) Ohm's Law
• (B) Curie's Law
• (C) Faraday's Law
• (D) Gauss's Law

What is the product of the reaction between Phenol and concentrated \(HNO_3\)?

• (A) Nitrobenzene
• (B) Picric Acid (2,4,6-trinitrophenol)
• (C) Aniline
• (D) Benzaldehyde

What is the Van't Hoff factor (\(i\)) for a non-electrolyte?

• (A) \(0\)
• (B) \(1\)
• (C) \(2\)
• (D) \(3\)

What is the SI unit of Magnetic Induction?

• (A) Weber
• (B) Tesla (T)
• (C) Henry
• (D) Ampere

Which part of the brain is responsible for maintaining posture and equilibrium?

• (A) Cerebrum
• (B) Cerebellum
• (C) Medulla Oblongata
• (D) Hypothalamus